You can read all the changes in each module from the News Link Matthias gives above!

Gnome Translations

If you are using Gnome in your language and you discovered some incorrect translations ..and you have some spare time, you can help Gnome. Making translations in Gnome is ridiculous easy and it won’t steal much from your time.

As en example I get a part of Gnome Shell Spanish translation. All translations strings are under PO folders in each module.